Glass Kiln
General Operation Manual
North American Models
May 2015
Page
16
of
17
Trouble Shooting
All Kilns are tested and checked at the factory before being cleared for shipment. Most problems with newly installed kilns are in the customers’ service to
the kiln. Even if installed by an electrician the main problems are: wire size, circuit breaker or fuse size being too small, loose connections, etc.
When working on repairs, be sure power supply cord is removed from wall receptacle and all power is turned off.
A qualified electrician or service person should do all repairs and follow all local, state and federal codes.
The electrical supply going into a kiln can be dangerous if not done properly.
IMPORTANT – Check electrical specifications.
TROUBLE
PROBABLE CAUSE
CORRECTIONS
Controller Program Running and Kiln
doesn’t heat or Switches on and Kiln
doesn’t heat.
(a)
Blown fuse/tripped circuit breaker
(b)
Kiln NOT plugged in
(c)
Loose connection
(d)
Faulty switch
(e)
Element burned out
(f)
Stuck relay
(g)
Improper data programmed
(a)
Replace fuse/reset circuit breaker
(b)
Plug kiln in
(c)
Tighten
(d)
Replace
(e)
Replace
(f)
Replace
(g)
Review and re-enter data
Fuse blows/circuit breaker trips as soon as
kiln is turned on.
(a)
Short in Kiln
(b)
Service wired wrong
(c)
Fuse or circuit breaker too small
(d)
Overloaded circuit
(a)
Check wiring
(b)
Have electrician check service from fuse box
to kiln
(c)
Check electrical specifications – replace with
right size (see note at bottom)
(d)
Disconnect all other appliances, etc. from
circuit
Fuse blows/circuit breaker trips during
firing.
(a)
Defective fuse(s) or worn circuit breaker
(b)
Fuse, wire size or circuit breaker too
small
(c)
Overloaded circuit
(d)
Loose or corroded connections
(e)
Short in kiln
(a)
Replace fuse(s) or breaker
(b)
Check electrical specifications – replace with
right size (see note at bottom)
(c)
Disconnect all other appliances, etc. from
circuit
(d)
Tighten or clean
(e)
Check wiring
Kiln takes too long to fire.
(a)
Voltage too low
(b)
Service wired wrong
(c)
Loose connection between fuse box and
kiln wiring
(d)
Element or switch burned out
(e)
Elements gradually wearing out
(f)
Relay stuck
(g)
One side of fuses or breaker blown
(h)
Improper data programmed
(a)
Have electrician or power company check
voltage – see specifications
(b)
Have electrician check service – see
specifications
(c)
Check and tighten all connections
(d)
Replace
(e)
Replace
(f)
Replace
(g)
Replace
(h)
Review and re-enter data
Kiln heats with Computer Controller off.
(a)
Relay Stuck
(a)
Replace
Kiln shuts off too soon.
(a)
Fuse blows/circuit breaker trips
(b)
Computer controller displays Error
Message
(a)
Replace fuse/reset circuit breaker
(b)
See Computer Controller Operating
Handbook
Hot or partially melted plug or wall
receptacle * Kiln should be shut down
immediately – DISCONNECT POWER.
(a)
Loose connection at wall receptacle
(b)
Worn receptacle or plug
(c)
Defective cord
(d)
Corroded cord prongs/or receptacle
terminals
(a)
Have electrician check and tighten
connections
(b)
Have electrician replace
(c)
Replace immediately
(d)
Sand cord prongs to remove corrosion. A
qualified electrician can replace cord or
receptacle if needed.
