Ametek Silicon Diode Ferroresonant Transformer Type Battery Charger 1050H3-24E

Heed WARNING in Silicon Diode Testing section

Disconnect capacitor and connect leads of ohmmeter to capacitor terminals

Observe ohmmeter pointer deflection

Does the pointer deflect, indicating the capacitor is being charged?

Does the pointer deflect in the opposite direction, indicating partial discharge?

If there is no deflection, the capacitor is 'open' and must be replaced

If the meter needle moves and stops at one value, replace the capacitor

Electrical Connections Inspection

Check and tighten all electrical connections to eliminate unnecessary losses.

Inspect for broken wiring or damaged insulation on wiring.

Ensure all charger cabinet panels are replaced after servicing to assure proper cooling and protection of internal components.

Verify all cabinet panels are replaced to protect personnel from hazardous voltages.

WARNING: ELECTRICAL SHOCK HAZARD

Turn OFF and remove fuses of disconnect switch (supplying AC power to charger)

Check for voltage on capacitors

Is there any voltage reading on capacitors?

Discharge capacitors through insulated screwdriver if there is any reading

Disconnect one diode lead to isolate diode from electrical circuitry

Ensure no bad connections or damage to charger is affecting the charging process.

Verify proper charging procedure has been followed.

Turn OFF and remove fuses of disconnect switch supplying AC power to charger.

Check for voltage on capacitors.

Is there any voltage reading on capacitors?

Discharge capacitors through insulated screwdriver if there is any voltage reading.

Ensure the charger is turned off and unplugged

Select the cleaning method used

Wipe all dirt from the unit's interior components

Blow out all dirt from the unit's interior components

Is the unit clean, dry, and well ventilated?