TEST OR INSPECTION
If no indication (indicator needle has not moved from previous
noted position), WATER TEMP gage is defective. Replace water
temperature gage (refer to page 2-70).
If ice is not available, obtain some water and heat to boiling.
Insert bulb in boiling water.
After several minutes observe temperature indication of 100°C.
If no indication, WATER TEMP gage is defective. Replace
WATER TEMP gage (refer to page 2-70).
OPEN MAG VALVE INDICATOR FLUCTUATES.
This indicator operates from the flame intensity. If flame is steady and the
indicator is fluctuating, troubleshoot as follows:
Check for cracked, burned, or broken lamp socket.
If lamp socket is cracked, burned, or broken, replace lamp socket
(refer to page 2-66).
If lamp socket is not defective, proceed to step 2.
Check for defective magnetic valve.
Refer to MALFUNCTION 4, step 5.
If magnetic valve is not defective, proceed to step 3.
Check for defective engine lighting coil.
Refer to MALFUNCTION 4, step 2.
Check for malfunctioning electronic module.
Start the decontaminating unit and establish water pressure.
a multimeter switched to the +DC volt range, verify that the voltage
across terminals 12 and 7 of the control panel terminal strip is not
less than 10 V-dc.
If required voltage is not present, replace electronic control module
(refer to page 2-74).