Test to do
P10 P9 P8 P37 P29 P27P38
P21 P30 P20 P19 P15 P14 P28
P11
P12P13P32P18 P17 P16
24V
RI23
RI 3
RI 12
RI 14
RI 25
RI 24
RI 19
RI 16
RI 15
RI 18
RI 13
RI 5
RI 4
RI 6
RI 7
RI 26
P26
P5
P6
F9
P7
E1
F2P1
F4
P2 P3 P4 P33 F3
P34
P35
P36
P25
F7
P22
HIGHT VOLTAGE
LOW VOLTAGE
AmA
F
°C
OVEN
Figure 26
How to measure the power
supply from the flame control
board to the P34 socket of the
power board and from the
P35 or P36 to the gas valve
Test 3
Measure the outflow gas pressure with a differential pressure gauge. Take the measurement on the lower
screw of the gas valve. When the valve is opened, check if it is supplied with 190 – 210 VDC. As an alternative
you can check if the relay EV_GAS is ON (it is near the RL24 relay next to the P33 socket),Figure 27
Figure 27
How to measure the outflow
gas pressure
Test 4
Measure the voltage on J6 socket of the flame control board between pin 15 and 16 with the
multimeter set to VAC (see Figure 27)
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