Rinnai RHFE-551FA Service Manual page 57

Troubleshooting
(TR1) Transformer:
Black - White = primary
Grey - Grey = secondary
White - Ground
Check from both white to ground to ensure circuit is complete.
In order to eliminate this switch as a cause of failure, shut the power off to the unit and jump out this
switch. Resart unit. If it functions, remove jumper, and replace air pressure switch.
Room Temperature Thermistor
Yellow - Yellow
Flame Rod
0.8 µA or greater
Slide Temperature Control
White to Black
White to Red
The resistance will change when the slide is moved.
110 - 125 VAC
95 - 105 VAC
9 - 12 VDC
Rinnai Direct Vent Service Manual
19 - 20 ohms
19 - 20 ohms
n/a
10-100 kΩ
0-30 kΩ
0-30 kΩ
RHFE-1001FA
n/a
n/a
4 - 5
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