ICM Controls SC 2811, Инструкция по установке, эксплуатации и применению

Страница: 31 / 32

Symptom Remedy
No display Check for 24 VAC at thermostat; display is blank when 24 VAC is not present
System fan does not come on
properly
Verify wiring is correct
Check configuration (see “Configuration Mode,” Setting 2, Page 22)
See “Fan Test” (Page 26)
Thermostat turns on and off too
frequently
Adjust temperature differential (see “Temperature Differential,” “Configuration
Mode,” Settings 6, 7 and 8, Pages 23 and 24)
Fan runs continuously Check fan On/Auto switch, ON position runs indoor fan continuously
Room temperature is not correct Verify wall hole is plugged with putty or insulation; calibrate thermostat (see
“Configuration Mode,” Setting 13, Page 25)
ROOM displays Room temperature offset is not zero (see “Configuration Mode,” Setting 13,
Page 25)
Status indicator Green light – Cooling operation
Red light – Heating operating
Status indicator option ON (see “Configuration Mode,” Setting 16, Page 25)
filter displays Fan run time has exceeded filter check time set in configuration (see
“Configuration Mode,” Setting 15, Page 25)
To reset counter to zero and clear filter warning, press the and buttons
simultaneously for 5 seconds
EH displays when button is pressed Thermostat is in Emergency Heat mode (see “Operating Modes,” Page 28)
Er displays Sensor error – check S1 & S2 connections, check remote sensor wire and
connections, use grounded shielded wire for remote sensor
Problem not listed above Press the Reset button once; display will be refreshed and anti-short cycle
timing will be reset to zero
Troubleshooting