Errors

• - select type -
• Trinity Fire Tube (Tft110)
• Trinity Fire Tube (Tft200)
• Trinity Fire Tube (Tft250)
• Trinity Fire Tube (Tft300)
• Trinity Fire Tube (Tft399)
• Trinity Fire Tube (Tft55)
• Trinity Fire Tube (Tft60)
• Trinity Fire Tube (Tft75)
• Trinity Fire Tube (Tft85)
• Trinity Lx150
• Trinity Lx150E
• Trinity Lx200
• Trinity Lx300
• Trinity Lx400
• Trinity Lx500
• Trinity Lx600
• Trinity Lx700
• Trinity Lx800
• Trinity TX101
• Trinity TX151
• Trinity TX151C
• Trinity TX200
• Trinity TX200C
• Trinity TX51
• Trinity TX81
• Vmax (VM110)
• Vmax plus (VM110P)

• - select code -
• Alert 128
• Alert 206
• Alert 233
• Alert 248
• Alert 311
• Hold 27
• Hold 61
• Hold 62
• Hold 63
• Hold 65
• Hold 66
• Hold 67
• Hold 79
• Hold 81
• Hold 85
• Hold 88
• Hold 91
• Hold 92
• Hold 95
• Lockout 109
• Lockout 113
• Lockout 122
• Lockout 173
• Lockout 174
• Lockout 2
• Lockout 65
• Lockout 67
• Lockout 79
• Lockout 81
• Lockout 82
• Lockout 85
• Lockout 88
• Lockout 9
• System disconnected

Boiler type Trinity Lx700

Error code Hold 91

Cause:

1. Sensor disconnected
2. Faulty sensor

Solution:

1. - Verify that 2-position Molex connector on wiring harness is securely attached to mating connector on inlet sensor.
- Inspect sensor wiring.
2. Check resistance of sensor and compare to thermistor resistance chart.