Rialta Service Manual - RialtaInfo

SECTION 1ELECTRICALTROUBLESHOOTING THE CONTROL CENTER AND ITS CIRCUIT1.SYMPTOMOne or more 11 O-volt loads are inoperative. 110 1.volts available from shoreline hook-up orgenerator.COURSE OF ACTIONReference appropriate 110-volt wiring diagramto determine what other loads are on theaffected ci rcuit. Proceed to Step 2.2. Attempt to operate other loads on the circuit.Do other loads function? (Yes) Proceed to Step3. (No) Proceed to Step 5.3. Check for 110 volts at the load. Are 110 voltspresent? (Yes) Failure is in the load. Repair orreplace. (No) Proceed to Step 4.4. Disconnect motor home from shore power.Disconnect negative leads from batteries torender generator set inoperable. Use anohmmeter to test for resistance and continuityon individual wires between last operative loadin the circuit and the first inoperative load.Does this test indicate high resistance or anopen in any wire? (Yes) Replace or repair thewire. (No) Visually inspect the wire todetermine the cause of voltage loss. Repair orreplace as necessary.5. Locate circuit breaker for affected circuit incontrol center. Reset. If loads are notfunctional, test for 110 volts at breaker output.Are 110 volts present? (Yes) Proceed to Step 6.(No) Proceed to Step 7.6. Disconnect motor home from shore power.Disconnect negative leads from batteries torender generator set inoperative. Use anohmmeter to check for high resistance or"open" in individual wires in the circuitbetween circuit breaker and first inoperativeload. Does this test indicate high resistance oran open? (Yes) Replace or repair affectedwiring. (No) Using a self-powered test, checkfor continuity between the hot wire andground. The hot wire and the neutral wire andthe neutral wire-to-ground. Continuityindicates a wire-to-ground or wire to wireshort. Repair or replace wiring as necessary.7. Check for 110 volts at input to breaker. Are 110volts present? (Yes) Replace the breaker. (See110-Volt Breaker Removal/Installation thissection.) (No) Proceed to Step 8.1-9