ELECTRONIC CLIMATE CONTROL II
SERVICE MANUAL Part No’s. 00-00855-000 / 00-00856-000
Intellitec
1485 Jacobs Rd.
Deland, FL 32724
386.738.7307
www.Intellitec.com
- 11 -
P/N 53-00855-856 Rev. C 080819
“ON” indicator is lit, but the furnace does not operate
in HEAT mode at any thermostat setting.
A. Check the fuse or circuit breaker feeding the furnace.
B. Move the set point control up to the highest and down to
the lowest temperature settings. Somewhere in between
these settings an audible click should be heard from the
relay in the control module.
If
NOT
:
Replace the control module.
C. Disconnect plug PC4 from the control module. Placing
a shorting jumper between PC4 pins 1 and 2 should cause
the front furnace to energize. Placing a shorting jumper
between PC4 pins 4 and 5 should cause the rear furnace to
energize.
If
NOT:
Check the wiring between PC4 and the furnace.
“ON” indicator is lit, air conditioners won’t function
properly, “SHORT” indicator on the control module is
“ON”.
One or more of the wires to the air conditioner/s are shorted
to ground.
1) Unplug either air conditioner connector (J2 or
J3) from the control module to see if the
“SHORT”
indicator goes out. The other air
conditioner should operate normally.
2) Check individual wires of suspect connector for
short to ground.
3) Repair short in wires.
