Francis Searchlights FR 230 User Information - Fault Finding

FR 230 Searchlight 

6 

Using the multi-meter take a 

voltage reading; 

Using the Ammeter, take an amps 

reading from the live cable to the 

lamp; 

Multiply these values together to 

give an approximate wattage. 

For Example: 

Using a 240v 1000w Tungsten 

Halogen lamp, 

Voltage reading : 240v 

Amps reading: 4 amps 

Therefore: 

Wattage = 240 x4 = 960 watts. 

Fault Finding  

If a fault occurs the following 

procedures should be adopted. Any 

work to be carried out should be 

conducted by a competent person. A 

multimeter should be used for fault 

finding purposes. 

Fault 

Lamp Fails to light 

Causes 

1)   Power not supplied 

2)   Fuse blown

3)   Failed lamp

Remedy 

1)   Check voltage at supply/battery. If 

necessary recharge battery. If 

supply is not present fault is at 

customer supply. If power is 

present, see remedy 2. 

2)   Check fuse for visual failure. If 

none noticeable check fuse for 

continuity. If fuse found to be 

faulty, replace with new part. If 

found to be working correctly see 

remedy 3.

3)   Firstly, check supply at lampholder 

connecting block (within 

searchlight barrel). If supply 

present, disconnect unit from 

power supply before removing 

lamp. If noticeable damage to 

filament is present, the lamp will 

have failed. The lamp can also be 

checked using a multimeter for 

continuity of the filament. Replace 

new lamp following all precautions 

mentioned previously and lamp 

manufacturers instructions.