Hayward H400FDN Universal H Series Troubleshooting Guide - Page 28

Inspect transformer wiring, Verify voltage selector plug, Test transformer resistance

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2. Open FC1 &/or F2 Fuse Verify voltage selector plug Step 2A Inspect transformer wiring Step 2B IF voltage selector plug matches voltage, go to step 2B. IF not, power down, replace FC1 & FC2 fuses, & switch plug to proper voltage. Inspect transformer wiring, ensuring the insulation on the wiring is not damaged. IF damaged replace transformer (pg. 20). IF OK go to 2C. Test transformer resistance Step 2C With power off, remove the P3 & P4 plugs. On the P3 plug measure resistance between the orange & yellow wires for 1.9 - 2.9 Ohms, then do the same between the black and brown wires. IF resistance is out-of-range, replace transformer (pg. 20). IF OK and problem still 28 persists, contact technical support: (908) 355.7995.

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IF voltage selector plug matches voltage, go to step
2B. IF not, power down, replace FC1 & FC2 fuses, &
switch plug to proper voltage.
Inspect transformer wiring
Inspect transformer wiring, ensuring the insulation
on the wiring is not damaged. IF damaged replace
transformer (
pg. 20
). IF OK go to 2C.
Verify voltage selector plug
Step 2A
With power off, remove the P3 & P4 plugs. On the P3 plug measure resistance between the
orange & yellow wires for 1.9
–
2.9 Ohms, then do the same between the black and brown
wires. IF resistance is out-of-range, replace transformer (
pg. 20
). IF OK and problem still
persists, contact technical support:
(908) 355.7995.
Test transformer resistance
28
Step 2B
2. Open FC1 &/or F2 Fuse
Step 2C