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Rinnai Q series Troubleshooting Manual
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35
008082013G
W
No feedback signal fro
m fan motor.
Check the wiring harness to the
fan motor and control
unit. Check power
supply to motor during combustion
process, should be 24 volts
DC.
Fan motor wiring harness
constant 24 volts DC.
Tachometer cable
Feedback signal
34
36
Table of Contents
Table of Contents
2
Table of Contents
3
Product View and Parts Identification
5
Block and Errors - Error Indication (Short Reference)
6
Operation Indication
6
Boiler Blocking Code
8
Outdoor Sensor Contact Open (Not Connected)
8
Maximum Average ΔT of T1 Supply Sensor Is Repeatedly Exceeded
9
Incorrect Parameter Setting for the Minimum or Maximum Power
11
Flue Sensor Temperature too High
13
Flue Sensor or Thermostat Contact Open
14
Flue Gas Thermostat Contact Open
16
No Water Flow Can be Detected through the Controller
17
The Frequency of the Power Supply Deviates more than + or - 1.5 Hz
18
Incorrect Flame Formation
19
No Flame Formation
21
Control Unit Error - Connector Not Plugged into the Gas Valve
22
The Controller Has Detected a Program Error
23
Control Unit Error
24
High Limit Stat Open
28
T3 Flow Sensor Ground Connection
30
T3 Flow Sensor Failure or Controller Failure
30
Signal Maximum Flow Water Temperature Exceeded
31
Signal Maximum Return Water Temperature Exceeded
32
T1 and T2 (Swapped)
33
No Feedback Signal from Fan Motor
35
There Is a Negative Pressure on Vent System
36
Internal Shut down of Supply Sensor T1
37
Shut down of Return Sensor T2
38
Contact for Supply Sensor T1 Open, Indicated by Infinite Ohm Reading
39
Contact for Return Sensor T2 Open, Indicated by Infinite Ohm Reading
40
Electrical Short Circuit, Possible Water Damage to MCBA, Main Board
43
T5 Sensor Is Reading too High of a Flue Gas Temperature
46
Check Fuse Mounted on PC Board to See if It Blown
48
Additional Troubleshooting Instructions
49
Central Heating but no Domestic Hot Water
49
Hot Water but no Central Heating
49
Central Heating Installation Gets Hot Without Being Requested
49
Insufficient Quantity of Hot Water
50
Temperature Drop of the DHW (Combi)
50
Radiators Do Not Get Hot Enough or Warming up Takes too Long
50
Checking the O2 Setting
51
Boiler Controls
52
Explanation of the Function Buttons
53
Requirements of the Water System
54
Starting up - Filling and De-Aerating the Boiler & Water Requirements
54
Freeze Protection
55
Filling the Heating System
56
Altering Adjustments
57
Parameter Mode
58
Information, Service and Error Modes
59
Activating Factory Settings (Green Button Function)
60
Isolating the Boiler
61
Reset Service Interval Counter
62
Other manuals for Rinnai Q series
Operation Manual
16 pages
Installation Manual
16 pages
4
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Rinnai Q series Specifications
General
Brand
Rinnai
Model
Q series
Category
Air Conditioner
Language
English
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