color

Fault

Possible Causes

suggested solution

◄

burner does not start

1- No power

2- Limiter or safety control open

3- Control box lock

4- Control box fuse blown

5- Electrical connection error

6- Damaged control box

7- No gas supply

8- Insufficient main gas pressure

9- The minimum gas pressure switch does not close

10- Air pressure switch not closed

11- Servo motor cam II does not operate, control box terminal 11-8

Close all switches and check connections

adjust or replace

reset control box

replace

check connection

replace

Open the manual valve between the meter and the pipeline

contact the gas company

adjust or replace

adjust or replace

Adjust cam II or replace servo motor

The burner does not start and has a lockout

12- Appearance of simulated flame

13- Motor remote control switch damaged (RS38-50/M)

14- Damaged motor

15-) Motor protection tripping (RS38-50/M)

Replace control box

replace

replace

After the lost phase is reconnected, reset the thermal relay

▲

Locked at maximum damper after burner starts

16- Servo motor cam I does not operate, control box terminal 9-8

Adjust cam I or replace servo motor

P

Locks immediately after burner starts

     Insufficient air pressure, air pressure switch does not work

17- Improperly adjusted air pressure switch

18- Pressure switch pressure point pipe blocked

19- Combustion head adjustment error

adjust or replace

to clean

Adjustment

■

Locks immediately after burner starts

20- FLAME DETECT CYCLE FAULT

Replace control box

▼

The burner is stopped in the pre-purge phase

21- Servo motor cam III does not operate, control box terminal 10-8

Adjust cam III or replace servo motor

1

After the burner pre-purge and safety time, the burner goes into lockout and the flame does not appear.

22- Solenoid valve VR only allows very little gas to pass through

23- Solenoid valve VR or VS cannot be opened

24- Gas pressure too low

25- Ignition electrode adjusted incorrectly

26- Electrode grounded due to insulation breakdown

27- Damaged high voltage cable

28- High voltage cables are deformed due to high temperature

29- Ignition transformer damaged

30- Valve or ignition transformer wiring error

31- Control box damaged

32- The cock in the downstream line of the valve group is closed

33- Air in pipe

Increased gas throughput

Replace Coil or Rectifier Panel

Increase the pressure at the controller

adjustment, see Fig. C) p.5

replace

replace

replace or protect

replace

examine

replace

Open

exhaust air

The burner locks out immediately after the flame appears

34- Solenoid valve VR only allows very little gas to pass through

35- Ionization probe adjusted incorrectly

36- Faulty electrical wiring to the probe

Increased gas throughput

adjustment, see Fig. C) p.5

reconnect