Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| NIte Lite Pro II Vert or LD series runs for 10-20 seconds | Temperature or Oil pressure switch. | Check each switch individually by unhooking the wire from the switch and then running the unit. This procedure will have to be done one switch at a time. Once the wire is unhooked, then go to start the unit and wait for it to shut off. If the unit continues to run longer than previous shut off time (10-20 seconds) then this is the issue and your switch will need to be replaced. |
| NIte Lite Pro II Vert or LD series runs for 45-60 seconds before turning off | Power from generator to main breaker not present, small black wires to the orange wire with 2 amp inline fuse (AC circuit) not feeding SLS power. | Check power from generator to main breaker and if 120 volts are not present, then check and replace the capacitor. If power is coming from the generator to the main breaker, look for the small black wires to the orange wire with 2 amp inline fuse. This is the AC circuit and what feeds the SLS power to keep operating. Check in line fuse on orange power wire. If the fuse is good, then make sure power (120v) is to the relay. The relay closes and feeds 12 volts (green wire) to Pin# 4 of the SLS module. Once the module has AC power it will open light switches and send power to the hold wire of the fuel solenoid. |
| Lights fail to Illuminate | Check power at the main breaker. Power should be 120/240 from the gen to the main breaker. If power is lower than recommended rating, check the capacitor and generator output. If power is 120 at the main breaker, proceed to the light switched and light relays. Each light breaker should have the same voltage at the main breaker (120/240) and current should pass through each light relay. If voltage is found to drop then fix or replace the breaker or the light relay. Power is tested good at both light and switches, ensuring ballast is receiving sufficient voltage in (@ 120/240). Power out of ballast to the capacitor and light circuit should measure 360-440 volts (+/- 10%) is within spec. If a voltage test yields high voltage other than normal at lamp output to light then this is an indication that the light/tower cord has a short (Example- 500-600 volts indicates backfeeding through tower cord due to short in circuit). | |
| 120 volts +10% is not measured at each terminal | The generator, the generator capacitor or the wiring from the generator to the main circuit breaker is faulty | Refer to the troubleshooting flowchart (Section 1.6 forward) to further isolate the problem. |
| The meter reading should indicate 120 volts +10% but does not | The main breaker is faulty and must be replaced. See page 1 for a list of parts, visit our website at www.allmand.com/support/productsmanualsliterature.aspx for a full list of parts breakdowns, or contact the Allmand parts and service team at 1-800-562-1373 for correct replacement circuit breakers. | |
| The meter should read 62.0 Hertz with no load on the engine but does not | Slow engine speed may be caused by a number of factors: A. Incorrectly adjusted engine governor, B. Clogged or dirty air and/or/fuel filters, C. Dirty fuel, D. Worn or damaged engine. | A. Adjust governor as shown on the following page (Figure D.1/Pg 15) until a reading of 62.0 Hertz is indicated on the multimeter display. B. Replace filters if there are any questions as to their condition. C. Drain fuel tank and fuel system and replace with known clean fuel. Replace fuel filter before re-starting the engine. D. Contact your local servicing dealer for the make and model diesel engine in your light tower. Repair, build or replace as necessary. |
Fault codes and symptom→remedy steps extracted from this unit’s service/owner documentation; verify against the official manual before servicing.
Available documents
Service manual
About
Allmand NITE LITE PRO II — light tower. Specifications and parts compiled from manufacturer documents.