Knowledgebase
GMH / GCH
GMH95 / GCH9 - Lockout Codes
Goodman Gas Furnace: GMH95 / GCH9 Re: Lockout Codes # of Flashes Description Off No Power or Faulty Control On Normal Operation 1 Ignition lockout (3 failed tries) - 1hr Auto Reset 2 Pressure switch stuck closed 3 Pressure switch stuck open ...
19 Mar, 2021 Comments: 0
GMH95 / GCH9 - Flashing Code 1
​Goodman Gas Furnace: GMH95 / GCH9 Re: Flashing Code 1 / Won't Ignite Code 1 = 3 Failed Ignition Attempts ► ** Be aware that the furnace Condensate Pressure Switch breaks power to the gas valve and will cause a Fault Code 1 (Does not cause a Code 3). ** Qty Possible Causes: ...
20 Mar, 2023 Comments: 0
GMH95 / GCH9 - Flashing Code 3
Goodman Gas Furnace: GMH95 / GCH9 Re: Flashing Code 3 Code 3 = Pressure Switch failed to close with the inducer energized. ► There are 2 Pressure Switches in the furnace. Only the Inducer Pressure Switch will cause a Code 3. The Drain Pressure Switch (labeled as Front Cover Switch) breaks...
29 Jan, 2024 Comments: 0
GMH95 / GCH95 - Flashing Code 4
Goodman Gas Furnace: GMH95/ GCH95 Re: Flashing Code 4 Code 4 = Main limit switch (auto-reset) has opened its normally closed contacts, or the Blower Auxiliary Limit (manual-reset) has tripped. The control will operate the supply air blower and inducer while the open limit condition exists. ...
18 Oct, 2021 Comments: 0