Trouble shooting manual – Robur gas fired wall heater model 5001
Version 1.2 - 12/06/2006
12/21
STEP 3
5.
Check Z9
(Room thermostat). Close the thermostat by a
clockwise rotation.
6.
Check M1
(Overheat thermostat, automatic reset). The
thermostat is closed @ T lower than 140 °F
7.
Check S
(Combustion blower motor).
TROUBLE-SHOOTING STEP 3
Point 5 (Z9).
After a clockwise rotation the contact is still open. Check
wirings and connections. If they are OK and the room
temperature is cold replace the switch.
Point 6 (M1)
.
M1 is open and fan thermostat temperature lower than 140 °F.
Check wirings, connections, gas pressure, fan motor.
Clean fan blades and air grids
If everything is OK, replace the thermostat.
Point 7 (S).
S motor does not run. Check voltage, wirings and connections.
If everything is OK, replace the motor.
V = 120 V
Close @ 104 °F
T < 104 °F V = 0 V
T > 104 °F V = 120 V
Open @ 140 °F
