Troubleshooting - Robertshaw RS4110 User Manual

Setting the Fan to ON, AUTO, or CIRC
The fan has 3 settings: On, Auto, and Circ. Press the
among the three.
ON: The fan is on constantly. The room temperture, set points, and status
of the heating and cooling equipment has no effect on the fan.
AUTO: When there is a call for heating or cooling the fan will turn on.
CIRC: The fan operates in a cycle of on for 10 minutes and off for 20
minutes. When there is a call for heating or cooling the cycle stops
and the fan responds to the call. The fan circulation cycle resumes
when the call for heating or cooling is satisfied.

Troubleshooting

Thermostat does not turn on system.
System turns on too often.
System fan does not operate
properly.
Thermostat does not display
proper room temperature.
Display shows HI or LO and room
temperature is normal.
If problems with thermostat cannot be resolved, contact:
Problem
www.invensyscontrols.com
Technical Support: (800) 445-8299
Check wiring (see W W i i r r i i n n g g D D i i a a g g r r a a m m s s
section in the Installation Manual).
Increase temperature differential
(see T T o o M M a a k k e e C C h h a a n n g g e e s s t t o o t t h h e e S S e e t t t t i i n n g g s s
section).
Move fan option switch to either
gas or electric, to match system
(see Setting the Fan to ON, AUTO,
or CIRC section).
Check F/C (Fahrenheit/Celsius) setting.
(see T T o o M M a a k k e e C C h h a a n n g g e e s s t t o o t t h h e e S S e e t t t t i i n n g g s s
section.
Call a licensed service person to
replace/repair.
or
14
button to switch
Action