Goodman Furnace: Display blank, furnace dead – Goodman *MVC95/*CVC9
Display blank, furnace dead - Goodman *MVC95/*CVC9 on a Goodman furnace: The two-digit display shows nothing and the furnace does nothing. A ComfortNet thermostat may show INTERNAL FAULT EE with Call for Service.
Applies to: GMVC95/AMVC95 upflow and *CVC9 counterflow two-stage furnaces
Common causes of display blank, furnace dead - goodman *mvc95/*cvc9
- Disconnect switch off, blower door switch open, or 24 V wire loose
- Blown fuse or tripped breaker
- Internal fault in the furnace control
How to fix display blank, furnace dead - goodman *mvc95/*cvc9: step by step
- Safety: turn power off before touching the control. Discharge static to a bare metal part of the cabinet first.
- Confirm 115 V at the furnace and that the blower door is closed on its switch.
- Check for 24 V at the control.
- Check the 3 A fuse on the control. Replace with a 3 A automotive fuse only, after you find any short in the 115 V or 24 V wiring.
- If power and fuse are good and the display is still blank, replace the control with the correct part.
If the unit shows an error code, look it up: Goodman Furnace codes
Models
GCVC90704CXGCVC90905DXGCVC91155DXGCVC950714CXGCVC950915DXGMVC950453BXGMVC950704CXGMVC950905CXGMVC950905DXGMVC951155DX
Source: Goodman *CVC9/95 & *MVC95 Installation Instructions IO-341D (08/2010), Troubleshooting Chart p.53; Electrostatic Discharge p.49. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.