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5. Hotbed Temp Doesn’t Rise

   

Step 1 . Check Screen Operation 

Step 2 . Check hotbed connection

 

 
 
 

 
 
 
 
 

6. Motor Issue

 

Step 1 . Motor Test 

a.  Screen Operation 

Quick 

Settings → Preheat PLA 

b.  Check

 D4 

indicator .If the it doesn’t 

light on , you need to replace a 

mainboard; if 

D4

 indicator lights on , 

please check

 BED 

port connection . 

If no connection problem , you need 

to 

replace a hotbed

D4 

Summary of Contents for Prusa i3

Page 1: ...ons as follows 1 Mainboard is sensitive to static electricity Please Touch a grounded object to release static electricity before operation 2 Please ensure the power wire connection is correct 3 Pleas...

Page 2: ...6 3 Temp Display def 6 4 Extruder Temp Doesn t Rise 7 5 Hotbed Temp Doesn t Rise 8 6 Motor Issue 8 7 Limited Switch Issue 9 8 SD Card Issue 10 9 Online Printing Issue 10 10 Extruder Hotbed Temp Incons...

Page 3: ...3 Problem Collection 2 White Square 3 Temp Display def 4 Extruder Temp Doesn t Rise 5 Hotbed Temp Doesn t Rise 6 Motor Issue 7 Limited Switch Issue 8 SD Card Issue 1 Black Screen...

Page 4: ...4 9 Online Pringting Issue 10 Extruder Hotbed Temp Inconsistent with Display 11 Extruder Hotbed Temp Keeps Rising After the Boot...

Page 5: ...they are correct you need to replace a power supply a Check if the 40X40 Fan is running If not please check the wire connection between power mainboard is correct and the wire is not loose b Click Res...

Page 6: ...white square try to reconnect screen wire for several times when it s well connected click Reset button If still not working you need to replace a screen If D1 indicator is always off and screen is fu...

Page 7: ...board c If D5 indicator lights on please check End port connection If the connection is good you need to replace extruder heating pipe If Step 1 2 both shows abnormal extruder temp you need to replace...

Page 8: ...nection 6 Motor Issue Step 1 Motor Test a Screen Operation Quick Settings Preheat PLA b Check D4 indicator If the it doesn t light on you need to replace a mainboard if D4 indicator lights on please c...

Page 9: ...itch Normal Choose Y Pos Fast test X Limited Switch Abnormal You need to replace a limited switch You can use same method to test other limited swtich Example Before exchange X Pos Fast X motor is abn...

Page 10: ...g Issue Please ensure the printer can use SD card to offline printing and all functions are OK Question 1 repetier fail to connect Step 1 Check on PC if it can find CH340G If PC can t recognize SD car...

Page 11: ...control the printer Step 1 Confirm repetier is correctly set Check on PC if there is USB SERIAL If not please find the file in SD card and install it It depends on CH340G code Open repetier open Print...

Page 12: ...Inconsistent Step 1 Thermistor test Open the option below to record Check the info if it s normal If not you need to replace a mainboard Extruder Temp Hotbed Temp As showed in the picture the extruder...

Page 13: ...t shows abnormal extruder temp you need to replace extruder thermistor If it shows abnormal hotbed temp you need to replace mainboard If the hotbed temp is abnormal please do test refer to methods abo...

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