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NOTE: IF YOU NEED TO CONTACT YOUR DEALER OR AFTER-SALE SERVICE, MAKE SURE TO HAVE THE
MODEL OF YOUR FURNACE AND THE SERIAL NUMBER ON HAND. (THEY CAN BE FOUND ON THE
CERTIFICATION LABEL ON THE SIDE OF THE FURNACE).
14.2.1. UNIT OVERHEAT
The temperature probe (RTD) is disconnected or defective: If the displayed plenum temperature on the touch screen is
0 F or 11 0 F, the temperature probe is either disconnected or defective. Check the probe connection (see Section 9.4
- HOT AIR PLENUM TEMPERATURE PROBE INSTALLATION AND CONNECTION (RTD) or replace if necessary.
The air filter is dirty or clogged: Clean the furnace filter regularly. If the filter is damaged, replace it.
The
distribution
fan
is
faulty:
Check
the
fan
status.
To
do
this,
see
Section
14.1.1
-
42
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