Hakko Electronics FR-810 - Maintenance; Inspection; Troubleshooting Guide

8. MAINTENANCE / INSPECTION
A. Remove the heating element
1. Remove the 4 screws that attach the heater pipe to the handpiece. Remove the heater pipe.
2. Remove the mica, heat insulation fiber and insulation ring in the heater pipe.
3. Disconnect and remove the heating element.
B. Measure the resistance value
●Normal heater resistance value
Connect an ohmmeter across the connector terminals (a).
The correct values are approximately: 14Ω (±10%100-110V), 17Ω (±10%120V), 41Ω (±10%220-240V).
If the resistance value is incorrect, replace the part.
●Normal sensor resistance value
Connect an ohmmeter across the connector terminals (b). If the resistance value is ∞, replace the part.
Refer to the instructions included with the replacement part.
Pipe
CAUTION
Replacing the heating element is very dangerous. Be sure to turn the power switch OFF and be careful of
the following procedure when replacing the heating element.
(a)
(b)
Mica
Heat insulation fiber
Mica Heat insulation fiber
Insulation ring
Insulation ring
CAUTION
Handle the heating element with care. Never touch the heating element wire!
● Theunitdoesnotoperatewhenthe
powerswitchisturnedon.
● isdisplayed
● isdisplayed
● isdisplayed
9. TROUBLE SHOOTING GUIDE
WARNING
BeforecheckingtheinsideoftheHAKKOFR-810orreplacingparts,besuretodisconnectthepower
plug.Failuretodosomayresultinelectricshock.
Is the fuse blown?
Investigate why the fuse blew and then replace the fuse. If
the cause can not be determined, replace the fuse. If the fuse
blows again, send the unit in for repair.
Is the sensor broken?
Measure the resistance value of the sensor. When the resistance
value is ∞, replace the heater.
Is the heater broken?
Measure the resistance value of the heater. The correct values are
approximately: 17Ω (±10％120V and normal temperature). When
the resistance value is not within the normal range, replace the
heater.
The fan may be broken. Replace the fan with a new one.
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