Northern Lights NL498D2 / NL498K2 — Test Intake Heater

Testing & diagnosis

For the Northern Lights NL498D2 / NL498K2, from the Northern Lights operator's manual.

Applies to: Northern Lights NL498D2

Procedure

1. Remove power wire from heater terminal.
2. Connect DC test bulb between positive battery terminal and heater terminal.
3. If bulb lights, heater is functioning; if not, replace heater elements.

Full service-parts list: Northern Lights NL498D2 →

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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