| Control Module Status Indicators - M1M Series |
Red LED Indicator | Status |
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Steady ON | Control OK |
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Steady OFF | No power |
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Rapid fl ash | False fl ame or internal control fault |
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One fl ash | Limit switch is open |
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Two fl ashes | Pressure switch is open |
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Three fl ashes | Pressure switch is stuck closed |
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Four fl ashes | Lockout due to failed ignition |
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Five fl ashes | L1 neutral reversed or L1 voltage not present on L1 |
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Flame Status - A Yellow LED labeled “Flame” is provided to indicate fl ame status. When fl ame is sensed, the fl ame LED is lit. If fl ame sense is weak, yellow LED will fl ash.
| Control Module Status Indicator - M1B | |
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| |
Red LED Indicator | Status | |
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| |
One fl ash | The control is in | |
was stuck closed. | ||
| ||
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| |
Two fl ashes | The control is in lockout because the signal was not received by the | |
control that the inducer centrifugal switch had closed within the time. | ||
| ||
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| |
| The control is in lockout because a failed ignition attempt, a gas valve | |
Three fl ashes | error, or a false fl ame sensed during the warm up period. If false fl ame | |
has been sensed, the control will return to normal operation, and repeat | ||
| ||
| ignition sequence when the false fl ame is not present. | |
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| |
Four fl ashes | The control is in lockout due to a failure within the control board | |
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Control Module Status Indicator - M5S Series
The LED indicator(s) on the oil primary control provides lockout, recycle and cad cell indications.
Honeywell R7184 Control
Green LED Indicator | Status |
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On | Cad cell is sensing flame (could be fl ame or stray light) |
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Off | Cad cell is not sensing flame |
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Flashing - 1/2 sec. on, 1/2 sec. off | Lockout/Restricted Lockout |
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Flashing - 2 sec. on, 2 sec. off | Recycle |
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Beckett 7505 Control
LED Indicator Color | On Continuously | Flashing | |
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| |
Red | Restricted (hard) lockout | Soft lockout | |
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Green | Cad cell is sensing fl ame - | Recycle | |
(could be fl ame or stray light) | |||
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| ||
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| |
Yellow | Pump prime mode or reset | N/A | |
button currently held for 15+ sec. | |||
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Table 9. Control Module Status Indicators
29
