Nagas SDM Series, Installation And Operation Manual, Page: 22 / 35

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21 OPEN AIR PRESSURE SWITCH ● ● ● ○ *
54 GROUND FAULT ○ ○ ○ ● *
55 FAULTY PROGRAMMER ○ ○ ● ○ *
56 FAULTY AMPLIFIER ● ○ ○ ○ *
LIGHT:
○ = OFF
● = ON
* = FLASHING
FIREYE AND MAXITROL
NOTE: Refer to the normal operating sequence and the service check list below to identify the cause of the
problem.
8.3. Fireye - Troubleshooting check list
SYMPTOMS ACTIONS
The blower is not in
operation.
The burner is not in
operation.
The fresh air damper is
closed.
1. Turn ON main disconnect switch.
2. Check the input voltage.
3. Check 120-volt secondary circuit fuse.
4. Check the position of the switch on the remote control panel it should be set to BURNER.
5. Check the contactor indicating that the exhaust fan is in operation.
6. Press down the reset button of the (FIREYE) flame safeguard relay if an Alarm light flashes.
7. Check the adjustment of the overload relay of the blower motor re-adjust it if necessary.
8. Check the freeze protection control its contact opens after around 300 seconds if the supplied temperature remains
under 42°F. To start the heater, set the burner and blower switch located on the remote control panel to STOP and then
to BURNER.
9. Refer to the manufacturer.
The blower is not in
operation.
The burner is not in
operation.
The fresh air damper is open.
1. Make sure that the fresh air damper switch is closed.
2. Refer to the manufacturer.