Northern Lights NL844LW2 / NL844W2 — Testing Glow Plugs

Testing & diagnosis

For the Northern Lights NL844LW2 / NL844W2, from the Northern Lights operator's manual.

Applies to: Northern Lights NL844LW2, Northern Lights NL844W2, Northern Lights 844 / 844L engine, Northern Lights 844L engine

Procedure

1. Loosen the current carrying flat wire between the plus-poles of the glow plugs.
2. Connect a D.C. test bulb between the plus-pole of the battery and the plus-pole of the glow plug.
3. If the bulb lights up, the glow plug is functioning properly.
4. Check all glow plugs and replace any faulty ones.

Full service-parts list: Northern Lights NL844LW2 →, Northern Lights NL844W2 →

Source: Northern Lights operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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