ICP Furnace: Lock the furnace in a heat stage for testing (9MAE)
Lock the furnace in a heat stage for testing (9MAE) on a ICP furnace: Setup switches and an R jumper hold the furnace in minimum, intermediate or maximum heat. Return SW1-2 and SW4-2 to OFF unless a 2-stage thermostat is used, and leave SW1-1 and SW1-6 OFF.
Applies to: (F/G)9MAE0601714A, 0602120A, 0801714A, 0802120A, 1002122A, 1202422A
How to fix lock the furnace in a heat stage for testing (9mae): step by step
- Minimum: SW1-2 ON, SW4-2 OFF, jumper R to W/W1
- Intermediate: SW1-2 OFF, SW4-2 ON
- Maximum: jumper R to W/W1 and W2
- Afterwards return SW1-2 and SW4-2 to OFF (unless 2-stage thermostat)
If the unit shows an error code, look it up: ICP Furnace codes
Models
G9MAE0601714G9MAE0602120G9MAE0801714G9MAE0802120G9MAE1002122G9MAE1202422
Source: ICP (F/G)9MAE Service and Technical Support Manual 440 04 4700 00, Figure 4 Furnace Setup Switch Description, p.12 (PDF; printed p.10). 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.