How to Troubleshoot a Goodman GMV95

The Goodman GMV95 is a multi-position, two stage, variable-speed home gas furnace. It works with single-stage and two-stage thermostats. Goodman offers a Lifetime Heat Exchanger Limited Warranty, a 10-Year Unit Replacement Limited Warranty and a 10-Year Parts Limited Warranty. If a minor breakdown does occur, however, there are a number of possible ways to quickly get your furnace running again on your own before you call the repair technician. If you have doubts about making any repairs, stop and call a qualified HVAC technician. Goodman is not responsible for damage caused by the repair attempts of unqualified individuals.

Instructions

- 1
  Check whether the open-door switch is triggered if the motor does not start. Also check if the fuse blew or the breaker was tripped. If the motor rocks but won't start, check that the mount is tight and the blower wheel (fan) sits firm on its shaft. Call a repair technician if any of these issues exist.
- 2
  Visually check for obvious moisture present in the motor control module if the motor operates but runs erratically. Also verify that all the pins in the wiring harness are completely secure. You can find the wiring harness running from the motor to the integrated control board. If the motor makes unusual noises at high speeds, the air filter may be dirty.
- 3
  Check for a dirty air filter if the motor is excessively noisy. Restricted ductwork can also cause this issue, so check the ductwork for obstructions or pinching. If the blower cabinet is making noise, ensure the blower housing panels are completely secured.

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