Miller Electric 250 manual Engine, Maintenance Display Action

.A complete Parts List is available at www.MillerWelds.com

Trouble	Remedy
Low power output at ac receptacles.	Increase Fine control R1 setting to max.
	Check fuse F2, and replace if open (see Section 9-5).
High power output at ac receptacles.	Check engine speed, and adjust if necessary (see Section 9-4).
Erratic power output at ac receptacles.	Check fuel level.
	Check engine speed, and adjust if necessary (see Section 9-4).
	Check receptacle wiring and connections.
	Have Factory Authorized Service Agent check brushes and slip rings.

C. Engine

Maintenance Display	Action
noFUEL	Place Engine Control switch in the Off position, refuel, and start engine.
HI H2O	Coolant temperature is too high. Allow engine to cool and check coolant level (see Section 9-2).
LO OIL	Oil pressure is too low. Allow engine to cool and check oil level (see Section 9-2).

Trouble	Remedy
Engine does not crank.	Supplementary protector CB8 may be open (see Section 9-5). Wait and retry.
	Check battery voltage.
	Check battery connections and tighten if necessary.
	Check plug Engine Control switch and engine wiring harness connections.
	Have Factory Authorized Service Agent check Engine Control switch S2 or circuit breaker CB8.
Engine cranks but does not start.	Check fuel level and fault indicators on fuel gauge (see Section 6-1).
	Open fuel valve (see Section 5-6).
	Glow plug circuit breaker CB7 may be open (see Section 9-5). Wait and retry.
	Service inline fuel strainer and fuel filter (see Section 8-2).
	Check battery and replace if necessary.
	Check engine charging system according to engine manual.
	Check fuel solenoid according to engine manual.
	Have Factory Authorized Service Agent check glow Plug switch S6, glow plug, and control relay CR3.
Engine starts but stops when Engine	Check oil level (see Section 5-6) and fault indicators on fuel gauge (see Section 6-1). Engine will not
Control switch S2 returns to Run/Idle	start if oil pressure is too low.
position.
	Check coolant level and fan belt (see Section 5-6 and engine manual), and check fault indicators on
	fuel gauge (see Section 6-1). Engine will not start if engine temperature is too high.
	Have Factory Authorized Service Agent check low oil pressure shutdown switch S5 and engine tem-
	perature switch S4.
Engine does not stop.	Stop engine by closing fuel valve (see Section 5-6). Adjust shutdown solenoid (see Section 9-4).
Engine stopped during normal	Check fuel level and fault indicators on fuel gauge (see Section 6-1).
operation.
	Open fuel valve (see Section 5-6).
	Check oil level (see Section 5-6) and fault indicators on fuel gauge (see Section 6-1). Engine will not
	start if oil pressure is too low.
	Check coolant level and fan belt (see Section 5-6 and engine manual), and check fault indicators on
	fuel gauge (see Section 6-1). Engine stops if engine temperature is too high.
	Have Factory Authorized Service Agent check low oil pressure shutdown switch S5 and engine tem-
	perature switch S4.

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