Specifications
35
30
25
20
15
10
5
0
020406080 100 120
3000
2750
2500
2000
2250
1000
1250
1750
1500
750
0
-500 50 100 150 200 250 300 350 400 450 500 550
TEST VALUES
RESISTANCE
Metering pump   approx. 10 Ω for 12 volt heater; approximately 36 Ω for
      24 volt heater
Glow Pin     approx. 0.9 Ω
CHECKING THE SENSORS
To  check  the  sensors, measure  the  resistance  at  current  temperature, see 
following diagrams:
TEMPERATURE SENSOR
OVERHEATING SENSOR
Figure 13
TROUBLESHOOTING
BASIC TROUBLESHOOTING
In the event of failure there are several items which should be checked rst 
before any major troubleshooting is done.
Check:
•  Circuit breakers and fuses.
•  Electrical lines and connections.
•  For interference in combustion air and exhaust pipes.
•  That there is fuel in the tank.
•  Battery voltage.
  FLAME SENSOR
  Figure 14
19
6
Maintenance / Troubleshooting & Repair
REVISION LEVEL A - 12/09/13










