Accurex Hood Repair
Accurex XGV vapor hoods (Type II), XGB grease hoods (Type I UL 710-listed), utility distribution systems, matched makeup air units, and integrated electrical control packages, our techs service Accurex commercial kitchen ventilation across LA, Orange County, Ventura, San Bernardino, and Riverside. Accurex is a subsidiary of Greenheck Fan Corporation, headquartered in Schofield, Wisconsin, Greenheck is one of the largest commercial + industrial ventilation manufacturers in North America. Accurex established 2002 as the restaurant-focused product line. Shared Greenheck manufacturing + parts distribution. $120 commercial diagnostic waived with repair.
- Accurex since 2002, restaurant product line within Greenheck Fan Corporation
- Greenheck parent, Schofield WI; one of largest US commercial ventilation makers
- XGV + XGB + UDS + MAU, integrated hood + controls packages serviced end-to-end
- $120 commercial diagnostic, waived when you authorize the repair
Where we work
Local branches across Southern California
Eight branches covering Los Angeles, Orange, Ventura, San Bernardino, and Riverside counties. Same-day routing on calls before 1 PM.
Accurex, Greenheck restaurant line, Wisconsin, since 2002
Accurex is the restaurant-and-foodservice product line within Greenheck Fan Corporation, headquartered in Schofield, Wisconsin. Greenheck itself is one of the largest commercial and industrial ventilation manufacturers in North America, with a broad portfolio covering fans, dampers, louvers, makeup air units, energy-recovery ventilators, and commercial kitchen ventilation. Accurex was established within Greenheck in 2002 to package Greenheck's engineering and manufacturing infrastructure specifically for commercial restaurant applications, kitchen-specific hood configurations, UDS packaging, and control-system conventions aligned to restaurant workflow.
The operational significance for LA operators: Accurex hood packages run through the broader Greenheck distributor and technical-support network rather than through a restaurant-industry-only channel. That gives Accurex service a distinctive profile, parts supply shares infrastructure with Greenheck's much larger HVAC ventilation business, which helps on common motors, drives, and electrical components; service techs familiar with Greenheck commercial ventilation can transfer that knowledge directly to Accurex restaurant applications. Inside LA, Accurex concentrates at projects where the design-build contractor or mechanical engineer specified Greenheck for other HVAC components and folded kitchen ventilation into the same package.
Accurex hood systems we service
XGV vapor hoods (Type II)
Non-grease applications, dishwasher steam and condensate, oven heat and moisture, steam kettles. No fire-suppression listing requirement. Service: interlock relay, exhaust fan, damper actuator, condensate drain routing, lighting circuits.
XGB grease hoods (Type I UL 710)
Commercial cooking, ranges, fryers, charbroilers, woks, griddles. Grease filtration + exhaust collection. Service: pressure switch, interlock relay, VFD fault, fan motor, filter housing, fire-suppression interlock.
Utility distribution systems (UDS)
Integrated power + gas + water distribution assembly above the cookline. Service: electrical relay, gas-valve actuator, water-solenoid, internal wiring harnesses, quick-disconnect plugs.
Makeup air units (MAU)
Matched outdoor-air replacement for exhaust CFM. Direct-fired gas, indirect-fired gas, or electric heat variants. Service: gas valve, ignitor, flame sensor (gas); heat element (electric); supply fan motor, filter pressure switch, interlock with exhaust.
Integrated electrical control packages
Central control panel coordinating exhaust + MAU + lighting + gas-shutoff logic. VFD drives on variable-speed systems. Service: control relay, VFD fault, contactor, damper actuator coordination, system interlock troubleshooting.
Demand-controlled ventilation (where equipped)
Some Accurex projects include demand-controlled ventilation that modulates exhaust CFM based on cooking activity sensors. Service: optical or thermal sensor verification, control-logic programming, VFD modulation setpoints, interlock with MAU speed matching.
What breaks, contactors, interlocks, VFD faults
Across our Accurex commercial hood service volume, the failure mix concentrates in three domains.
Contactor wear is the most common single service category on integrated Accurex packages. Exhaust fan contactors, MAU fan contactors, and lighting-circuit contactors cycle multiple times daily over years; at several thousand cycles the contact points pit and degrade, producing intermittent operation, chatter on engagement, or full failure to close. Contactor replacement on a typical Accurex integrated panel runs $250-$450 including diagnostic. Catching contactor wear early through scheduled inspection prevents the cascade to bigger problems.
MAU interlock faults follow the standard commercial-hood interlock pattern. The MAU won't fire heat or cooling unless it confirms exhaust running via pressure switch or current sensor. When the interlock signal is intermittent, dirty pressure switch, loose wiring at the interlock relay, drifting current sensor, the MAU shows a fault that looks like an MAU problem but is actually an interlock signaling issue. Diagnostic: verify exhaust running + pressure/current reading at the sensor + signal reaching the interlock relay + relay output. Most calls resolve at pressure-switch or interlock-relay replacement.
VFD faults after LA brownouts hit Accurex variable-speed systems the same way they hit other commercial hood brands. Overcurrent trip on restart, drive-to-control communication loss, voltage-sag lockout. Reset + tighten + threshold-adjust resolves most; drive replacement needed in ~10-15% of cases.
What Accurex hood repair costs in LA
$120 flat commercial diagnostic, waived with repair.
| Repair | Typical range (parts + labor) |
|---|---|
| Pressure switch / interlock relay / contactor | $250–$450 |
| MAU interlock fault diagnosis + wiring repair | $280–$520 |
| VFD fault reset + inspection | $280–$460 |
| Control-panel relay + contactor replacements | $320–$560 |
| Hot-water solenoid (water-wash variants) | $320–$480 |
| MAU ignitor / flame sensor (gas variants) | $340–$560 |
| Damper actuator replacement | $360–$640 |
| Gas-shutoff solenoid service | $380–$640 |
| Exhaust fan or MAU fan motor replacement | $850–$2,000 |
| VFD drive replacement | $950–$1,800 |
| Control board replacement | $1,100–$1,800 |
Most Accurex hood calls land $280-$560 parts-and-labor. Fan motor and drive work runs the higher end. Integrated control-package complexity sometimes extends diagnostic time. See commercial exhaust hood repair cost guide.
Accurex, related hood pages
Accurex hood repair, frequently asked
Who makes Accurex hoods?
Accurex is a subsidiary of Greenheck Fan Corporation, headquartered in Schofield, Wisconsin. Greenheck is one of the largest commercial + industrial ventilation manufacturers in North America, with a broad product portfolio covering fans, dampers, louvers, make-up air units, energy recovery ventilators, and commercial kitchen ventilation. Accurex was established within Greenheck in 2002 as the restaurant-and-foodservice-focused product line, designed to package Greenheck's engineering and manufacturing with restaurant-specific configurations, controls, and service conventions. Operationally the distinction matters: Accurex shares Greenheck's Wisconsin manufacturing and parts-supply infrastructure, which gives Accurex hood projects access to the same distributor network that supports Greenheck's broader HVAC ventilation business. Inside LA, Accurex shows up at restaurant projects where the design-build contractor or mechanical engineer specified Greenheck for other HVAC components and included the kitchen ventilation in the same package.
What Accurex hood systems show up in LA?
Accurex packages hoods + makeup air + utility distribution + controls as integrated systems. Core product lines: XGV vapor hoods (Type II non-grease for dishwasher + steam + heat exhaust), XGB grease hoods (Type I UL 710-listed for commercial cooking), utility distribution systems (UDS) packaging power + gas + water above the cookline, matched makeup air units (MAU variants with direct-fired gas, indirect-fired gas, or electric heat), and integrated electrical control packages that coordinate exhaust + MAU + lighting + gas-shutoff logic. Accurex's integrated-package positioning means an Accurex kitchen often has all components from one manufacturer, hood, MAU, UDS, controls, which simplifies service because the integration points are designed together rather than field-integrated across multiple manufacturers.
Accurex vs Greenheck, are they different brands?
Same parent manufacturing, different product-line positioning. Greenheck makes a broad commercial + industrial ventilation lineup including fans, dampers, louvers, MAUs, and ERVs serving HVAC and industrial applications. Accurex is the restaurant-and-foodservice product line within Greenheck, established in 2002 to package Greenheck engineering specifically for commercial kitchen applications. Parts and service infrastructure runs through the shared Greenheck network, the same authorized distributors, the same technical support, the same Wisconsin manufacturing. For an LA restaurant with an Accurex hood package, service parts route through Greenheck's distribution channel. If a kitchen has mixed ventilation, Accurex hood + Greenheck MAU + separate makeup air from another vendor, we service each component through its correct channel and coordinate timing to minimize downtime.
What's the diagnostic sequence for an Accurex XGB hood VFD fault?
XGB grease hoods with variable-speed exhaust on VFD controls follow the standard commercial-hood VFD diagnostic playbook. After LA brownouts, hard mid-cycle shutoffs, or thunderstorm cycles, the drive can throw overcurrent trips on restart, lose communication with the control panel, or hit voltage-sag detection lockouts. Sequence: read the fault code on the VFD display or the integrated control panel; cycle the main disconnect at the mechanical room or roof for 60 seconds to fully reset the drive; tighten drive-to-motor output terminals (thermal cycling loosens them over years); verify the drive's voltage-sag threshold isn't set tighter than LA brownout-tolerance warrants; test the fan motor electrically to rule out winding or bearing issues. Most Accurex XGB VFD fault calls resolve at reset + tightening + threshold adjustment; drive replacement is needed roughly 10-15% of cases and runs $950-$1,800 installed.
Accurex integrated control package, what failure modes do you see?
Integrated control packages coordinate exhaust fan + MAU + lighting + gas-shutoff + interlock logic through a central panel. Common Accurex control-package service domains: MAU interlock faults from pressure-switch or current-sensor issues on the exhaust proof-of-operation (most common); contactor wear on high-cycle relays (exhaust + MAU fans + lighting get cycled multiple times daily over years); damper actuator failures on motorized dampers at the exhaust or MAU side; VFD fault recovery after power events; gas-shutoff solenoid diagnostics when the hood's fire-safety interlock trips gas supply to the cookline; lighting-circuit issues on the integrated panel. Because Accurex packages are integrated, a single control panel may coordinate multiple components, which means good service requires understanding the whole package coordination, not just the failing component in isolation.
How much does Accurex hood repair cost in Los Angeles?
$120 flat commercial diagnostic, waived when you authorize the repair. Typical Accurex service ranges: pressure switch + interlock relay + contactor $250-$450; MAU interlock fault diagnosis $280-$520; control-panel relay + contactor replacements $320-$560; damper actuator replacement $360-$640; hot-water solenoid on water-wash variants $320-$480; VFD fault reset + inspection $280-$460; MAU ignitor + flame sensor on gas variants $340-$560; gas-shutoff solenoid service $380-$640; exhaust fan motor or MAU fan motor replacement $850-$2,000 installed depending on HP + access; VFD drive replacement $950-$1,800; control board replacement $1,100-$1,800. Restaurant downtime economics favor same-day dispatch during normal business hours; after-hours emergency visits are available but carry a surcharge.
Accurex hood down? Call the branch closest to you.
Same-day commercial kitchen exhaust service across LA, Orange, Ventura, San Bernardino, and Riverside counties. $120 commercial diagnostic waived with repair.