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Status
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Standby
Energy Save On
Sensor
Fault
Adjust Max Efficiency On
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Communication
Fault
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Soft Lockout
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Lockout
History
Sequencer
Setup
Limit String
Status
Sensor
Status
Service
Contract
Boiler Size
Setup
Rate Limit
Status
Reset
Active Fault Screen
Help Screen
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C. Help Screen Faults
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Setup
Fault
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50
For Service Contact:
CONTRACTOR NAME
CONTRACTOR ADDRESS 1
CONTRACTOR ADDRESS 2
PHONE NUMBER
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Limit String Status
Limit String
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Outdoor Sensor 45 F Normal
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Rate Limits
Active Rate Limiter:
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Active Rate Override:
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Temperature
Rate Limit
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b
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Refer to lockout section for potential corrective action.
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boiler will shut down, the display will turn red and the “Help” button will “blink”. Select the “blinking” “Help” button to
determine the cause of the soft lockout. The boiler will automatically restart once the condition that caused the lockout is
corrected.
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2
Boiler Safety Limit
Open
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cycles.
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contact open.
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Boiler Safety Limit
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terminals J5-1 OPEN:
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and 12 or device connected to it open.
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Return sensor fault
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Supply sensor fault
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DHW sensor fault
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temperature sensor.
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10
Stack sensor fault
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sensor.
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11
Ignition failure
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Flame rod
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14
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15
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16
risen too quickly
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17
Blower speed
not proved
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are open.
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boiler will shut down, the display will turn red and the “Help” button will “blink”. Select the “blinking” “Help” button to
determine the cause of the Hard Lockout. Once the condition that caused the lockout is corrected, the boiler will need to be
manually reset using the Reset button on the “Active Fault” display or located on the R7910 Control.
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R7910 supply sensor detected
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R7910 DHW sensor detected
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19
Purge rate proving failed
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20
Invalid Safety Parameters
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Q€=H
related parameter detected.
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21
Invalid Modulation Parameter
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Q€=H`
related parameter detected.
22
Q€=H
4
12
Flame detected out of sequence
23
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b?
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b
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ground.
or low.
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24
Fuel Valve Error
b
b
¡
_
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connections.
¡ :z$K]
;
25
Hardware Fault
Internal control failure.
¡
26
Internal Fault
Internal control failure.
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Models PHNTM210 and PHNTM285
Flame failure after 5 tries to restart.
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¡ &
b
¡ &
¡ !
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27
Ignition failure
97
+